Green Synthesis of Silver - Nanocomposite for Treatment of Textile Dye

Papita Das

doi:10.15226/2374-8141/1/2/00113

Abstract

Textile industries not only consume huge volumes of water but also generate an equally alarming quantity of toxic dye rich waste water. This waste water if treated efficiently may be further reused for domestic and industrial purposes. Hence it is essential to develop, a cost effective and environmentally benign technique for adsorption of toxic dyes from textile effluents. Firstly, Ocimum tenuiflorum (Black Tulsi) leaf extract mediated green synthesis of silver nanoparticles (AgNPs) was carried out. The AgNPs were characterized using SEM and TEM analysis. These AgNPs were further utilized for preparing silver - nanocomposites with soil and applied as a novel nanocomposite for adsorption of reactive dye. However, this nanocomposite was determined to possess higher efficiency in comparison to soil as adsorbent for the removal of reactive turquoise blue dye under same experimental conditions. Moreover using these Ag-nanocomposites as adsorbent helped in achieving about 96.8% removal of reactive turquoise blue dye from effluent solution.

Highlights

Rapid growth of various industries paralleling the swift rise in civilization and modernization is raising a recent global concern by generating huge volumes of toxic effluents
Such effluents frequently rich in toxic dyes are often discharged into the environment without proper preceding treatments and result in an increased burden of health care issues in a developing country like India and worldwide
The AgNPs obtained from the reaction of aqueous leaf extract of Ocimum tenuiflorum and silver nitrate (1mM) established by the reaction mixture turning reddish brown in color after incubation while the controls experienced no color change at all

Summary

Introduction

Rapid growth of various industries paralleling the swift rise in civilization and modernization is raising a recent global concern by generating huge volumes of toxic effluents Disposal of these toxic effluents have lead to a severe contamination of the adjacent water bodies in turn causing relentless harm to life in and around them. Such effluents frequently rich in toxic dyes are often discharged into the environment without proper preceding treatments and result in an increased burden of health care issues in a developing country like India and worldwide. Of the many hazardous dyes used in textile industries, one of significance is reactive turquoise blue. Inefficient textile processing may result in 10-15% of such dyes being discharged directly along with wastewater into the surrounding environment [2]

Methods

Results

Conclusion